Influence of phosphate, humic acid and silicate on the transformation of chromate by Fe(II) under suboxic conditions

@inproceedings{Guan2011InfluenceOP,
  title={Influence of phosphate, humic acid and silicate on the transformation of chromate by Fe(II) under suboxic conditions},
  author={Xiaohong Guan and Haoran Dong and Jun Ma},
  year={2011}
}
Abstract The influence of a set of naturally occurring ligands (PO 4 3− , humic acid (HA) and SiO 3 2− ) upon the transformation of Cr(VI) by Fe(II) was studied under suboxic conditions in the pH range of 4–10. The presence of phosphate or HA improved Fe-induced reduction of Cr(VI) at pH ≤ 5.0 due to the formation of Fe(II)–phosphate or Fe(II)–humate complexes which had lower redox potential than free Fe(II) species. However, silicate exerted little effect on the reduction of Cr(VI) by Fe(II… CONTINUE READING